1   98 132 A NONRANDOMIZED NON-NAIVE COMPARATIVE STUDY OF THE EFFECTS OF KAPALABHATI AND BREATH AWARENESS ON EVENT-RELATED POTENTIALS IN TRAINED YOGA PRACTITIONERS. OBJECTIVES: THE STUDY WAS CONDUCTED TO COMPARE THE P300 EVENT-RELATED POTENTIALS RECORDED BEFORE AND AFTER (1) HIGH-FREQUENCY YOGA BREATHING (HFYB) AND (2) BREATH AWARENESS. DESIGN: THE P300 WAS RECORDED IN PARTICIPANTS OF TWO GROUPS BEFORE AND AFTER THE INTERVENTION SESSION (1 MINUTE IN DURATION). SETTINGS AND LOCATION: ALL PARTICIPANTS WERE RECEIVING YOGA TRAINING IN A RESIDENTIAL YOGA CENTER, SWAMI VIVEKANADA YOGA RESEARCH FOUNDATION IN BANGALORE, INDIA. SUBJECTS: THIRTY (30) MALE PARTICIPANTS FORMED TWO GROUPS (N = 15 EACH) WITH COMPARABLE AGES (WITHIN AN AGE RANGE OF 20-35 YEARS) AND COMPARABLE EXPERIENCE OF THE TWO TECHNIQUES, THE MINIMUM EXPERIENCE BEING 3 MONTHS. INTERVENTIONS: THE TWO GROUPS WERE EACH GIVEN A SEPARATE INTERVENTION. ONE GROUP PRACTICED A HFYB AT A FREQUENCY OF APPROXIMATELY 2.0 HZ, CALLED KAPALABHATI. THE OTHER GROUP PRACTICED BREATH AWARENESS DURING WHICH PARTICIPANTS WERE AWARE OF THEIR BREATH WHILE SEATED, RELAXED. OUTCOME MEASURES: THE P300 EVENT-RELATED POTENTIAL, WHICH IS GENERATED WHEN ATTENDING TO AND DISCRIMINATING BETWEEN AUDITORY STIMULI, WAS RECORDED BEFORE AND AFTER BOTH TECHNIQUES. RESULTS: THE P300 PEAK LATENCY DECREASED AFTER HFYB AND THE P300 PEAK AMPLITUDE INCREASED AFTER BREATH AWARENESS. CONCLUSIONS: BOTH PRACTICES (HFYB AND BREATH AWARENESS), THOUGH VERY DIFFERENT, INFLUENCED THE P300. HFYB REDUCED THE PEAK LATENCY, SUGGESTING A DECREASE IN TIME NEEDED FOR THIS TASK, WHICH REQUIRES SELECTIVE ATTENTION. BREATH AWARENESS INCREASED THE P300 PEAK AMPLITUDE, SUGGESTING AN INCREASE IN THE NEURAL RESOURCES AVAILABLE FOR THE TASK.	2009	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
2 1695  47 P300 FOLLOWING FOUR VOLUNTARILY REGULATED YOGA BREATHING PRACTICES AND BREATH AWARENESS. ATTENTION WAS INFLUENCED BY YOGA BREATHING IN PREVIOUSLY PUBLISHED RESEARCH. EACH YOGA BREATHING PRACTICE UNIQUELY MODIFIES SPECIFIC BREATH CHARACTERISTICS. DIFFERENCES IN THE STUDY DESIGNS, ASSESSMENT METHODS AND INTERVENTIONS RESULTED IN DIFFICULTY IN COMPARING EFFECTS BETWEEN YOGA BREATHING PRACTICES. THIS STUDY AIMED (I) TO COMPARE FOUR YOGA BREATHING PRACTICES ON ATTENTION USING AN AUDITORY ODDBALL TASK AND (II) TO DETERMINE CARDIAC AUTONOMIC ACTIVITY ASSOCIATED WITH ATTENTION USING HEART RATE VARIABILITY. P300 EVENT RELATED POTENTIAL WAS RECORDED SIMULTANEOUSLY WITH HEART RATE VARIABILITY BEFORE AND AFTER 18-MINUTE PERIODS EACH OF (I) HIGH FREQUENCY YOGA BREATHING (WITH INCREASED BREATH FREQUENCY), (II) BELLOWS YOGA BREATHING (WITH INCREASED DEPTH OF RESPIRATION), (III) ALTERNATE NOSTRIL YOGA BREATHING (WITH ALTERNATE NOSTRIL PATENCY), (IV) BUMBLEBEE YOGA BREATHING (WITH PROLONGED EXHALE), (V) BREATH AWARENESS (WITH ATTENTION TO THE BREATH) AND (VI) QUIET SEATED REST AS CONTROL IN 38 YOGA EXPERIENCED MALES (AVERAGE AGE +/- SD; 24.08 +/- 4.01 YEARS). THE SIX SESSIONS WERE ON SEPARATE, RANDOMLY ALLOCATED DAYS. THE P300 PEAK AMPLITUDE RECORDED AT PZ WAS SIGNIFICANTLY INCREASED AFTER FOUR YOGA BREATHING PRACTICES (BONFERRONI ADJUSTED POST-HOC TESTS, REPEATED MEASURES ANOVA). NO SIGNIFICANT CHANGES WERE NOTED IN HEART RATE VARIABILITY FOLLOWING YOGA BREATHING OR CONTROL SESSIONS. THESE FINDINGS SUGGEST THAT THE FOUR YOGA BREATHING PRACTICES INCREASE THE ATTENTIONAL NEURAL RESOURCES ENGAGED FOR THIS AUDITORY ODDBALL TASK, IRRESPECTIVE OF THE CHARACTERISTIC OF BREATH UNIQUELY REGULATED IN THE FOUR YOGA BREATHING PRACTICES.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
3  457  41 CHANGES IN P300 FOLLOWING ALTERNATE NOSTRIL YOGA BREATHING AND BREATH AWARENESS. THIS STUDY ASSESSED THE EFFECT OF ALTERNATE NOSTRIL YOGA BREATHING (NADISUDDHI PRANAYAMA) ON P300 AUDITORY EVOKED POTENTIALS COMPARED TO A SESSION OF BREATH AWARENESS OF EQUAL DURATION, IN 20 MALE ADULT VOLUNTEERS WHO HAD AN EXPERIENCE OF YOGA BREATHING PRACTICES FOR MORE THAN THREE MONTHS. PEAK AMPLITUDES AND PEAK LATENCIES OF THE P300 WERE ASSESSED BEFORE AND AFTER THE RESPECTIVE SESSIONS. THERE WAS A SIGNIFICANT INCREASE IN THE P300 PEAK AMPLITUDES AT FZ, CZ, AND PZ AND A SIGNIFICANT DECREASE IN THE PEAK LATENCY AT FZ ALONE FOLLOWING ALTERNATE NOSTRIL YOGA BREATHING. FOLLOWING BREATH AWARENESS THERE WAS A SIGNIFICANT INCREASE IN THE PEAK AMPLITUDE OF P300 AT CZ. THIS SUGGESTS THAT ALTERNATE NOSTRIL YOGA BREATHING POSITIVELY INFLUENCES COGNITIVE PROCESSES WHICH ARE REQUIRED FOR SUSTAINED ATTENTION AT DIFFERENT SCALP SITES (FRONTAL, VERTEX AND PARIETAL), WHEREAS BREATH AWARENESS BRINGS ABOUT CHANGES AT THE VERTEX ALONE.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
4 2511  51 YOGA BREATHING THROUGH A PARTICULAR NOSTRIL IS ASSOCIATED WITH CONTRALATERAL EVENT-RELATED POTENTIAL CHANGES. BACKGROUND: IN EARLIER STUDIES UNINOSTRIL YOGA BREATHING WAS SHOWN TO INFLUENCE THE ACTIVITY OF THE CEREBRAL HEMISPHERES DIFFERENTLY, BASED ON (I) AUDITORY EVOKED POTENTIALS RECORDED FROM BILATERAL SCALP SITES, AND (II) PERFORMANCE IN HEMISPHERE-SPECIFIC TASKS. BUT CHANGE IN P300 (EVENT-RELATED POTENTIAL GENERATED WHEN SUBJECTS ATTEND TO AND DISCRIMINATE BETWEEN STIMULI) FROM BILATERAL SCALP SITES WHEN SUBJECTS WERE PRACTICING UNI- AND ALTERNATE-NOSTRIL BREATHING ARE YET TO BE EXPLORED. AIM: THE PRESENT STUDY WAS DESIGNED TO DETERMINE WHETHER OR NOT IMMEDIATELY AFTER UNINOSTRIL OR ALTERNATE NOSTRIL YOGA BREATHING THERE WOULD BE A CHANGE IN THE ABILITY TO PAY ATTENTION TO A GIVEN STIMULUS. MATERIALS AND METHODS: TWENTY-NINE HEALTHY MALE VOLUNTEERS, WITH AGES BETWEEN 20 AND 45 YEARS WERE RANDOMLY ALLOCATED TO FIVE SESSIONS, VIZ., (I) RIGHT-, (II) LEFT-, (III) ALTERNATE-NOSTRIL YOGA BREATHING, (IV) BREATH AWARENESS AND (V) NO INTERVENTION, EACH FOR 45 MIN ON SEPARATE DAYS. THE P300 EVENT RELATED POTENTIAL WAS RECORDED USING AN AUDITORY ODDBALL PARADIGM FROM SITES ON THE LEFT (C3) AND RIGHT (C4), REFERENCED TO LINKED EARLOBES, BEFORE AND AFTER EACH SESSION. RESULTS: POST-HOC ANALYSIS WITH BONFERRONI ADJUSTMENT SHOWED THAT THE P300 PEAK LATENCY WAS SIGNIFICANTLY LOWER AT C3 COMPARED TO THAT AT C4, FOLLOWING RIGHT NOSTRIL YOGA BREATHING (P<0.05). CONCLUSION: THESE RESULTS SUGGEST THAT RIGHT NOSTRIL YOGA BREATHING FACILITATES THE ACTIVITY OF CONTRALATERAL (LEFT) HEMISPHERE, IN THE PERFORMANCE OF THE P300 TASK.	2012	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
5  463  47 CHANGES IN SHAPE AND SIZE DISCRIMINATION AND STATE ANXIETY AFTER ALTERNATE-NOSTRIL YOGA BREATHING AND BREATH AWARENESS IN ONE SESSION EACH. BACKGROUND YOGA BREATHING TECHNIQUES LIKE HIGH-FREQUENCY YOGA BREATHING (HFYB) AND BREATH AWARENESS (BAW) HAVE BEEN ASSOCIATED WITH IMPROVED PERFORMANCE IN THE SHAPE AND SIZE DISCRIMINATION TASK. A PUBMED SEARCH OF THE LITERATURE REVEALED THAT ALTERNATE-NOSTRIL BREATHING HAS BEEN SHOWN TO IMPROVE PERFORMANCE IN ATTENTION TASKS, BUT THE EFFECT ON TACTILE PERCEPTION HAS NOT BEEN STUDIED. HENCE, THE PRESENT STUDY WAS DESIGNED TO ASSESS THE IMMEDIATE EFFECTS OF ALTERNATE-NOSTRIL YOGA BREATHING (ANYB) COMPARED TO BREATH AWARENESS ON SHAPE AND SIZE DISCRIMINATION AND STATE ANXIETY. MATERIAL AND METHODS FIFTY HEALTHY MALE VOLUNTEERS AGES 20-50 YEARS (GROUP MEAN +/-S.D., 28.4+/-8.2 YEARS) WERE RECRUITED. EACH PARTICIPANT WAS ASSESSED IN 3 SESSIONS CONDUCTED ON 3 SEPARATE DAYS AT THE SAME TIME OF DAY. THE 3 SESSIONS WERE (I) ALTERNATE-NOSTRIL YOGA BREATHING (ANYB), (II) BREATH AWARENESS (BAW), AND (III) QUIET SITTING (QS), AND THE SEQUENCE OF THE SESSIONS WAS RANDOMLY ALLOCATED. THE SHAPE AND SIZE DISCRIMINATION TASK AND STATE ANXIETY WERE ASSESSED BEFORE AND AFTER ALL 3 SESSIONS. REPEATED MEASURES ANALYSIS OF VARIANCE (RM-ANOVA) FOLLOWED BY POST HOC TESTS FOR MULTIPLE COMPARISONS, WHICH WERE BONFERRONI-ADJUSTED, WERE PERFORMED TO COMPARE DATA BEFORE AND AFTER ALL 3 SESSIONS USING SPSS VERSION 18.0. RESULTS THE ERRORS SCORES IN THE SHAPE AND SIZE DISCRIMINATION TASK SHOWED A SIGNIFICANT REDUCTION AFTER THE ANYB SESSION (P<0.001). A SIGNIFICANT REDUCTION WAS FOUND IN THE LEVEL OF STATE ANXIETY AFTER BREATH AWARENESS (P<0.05) AND QUIET SITTING SESSIONS (P<0.001). CONCLUSIONS THE PRESENT RESULTS SUGGEST THAT ANYB: (I) IMPROVES PERFORMANCE IN A TASK WHICH REQUIRES PERCEPTUAL SENSITIVITY AND FOCUSED ATTENTION, BUT (II) DOES NOT REDUCE STATE ANXIETY FOLLOWING THIS TASK.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
6 1489  31 INTERACTIONS BETWEEN BODY AND SOCIAL AWARENESS IN YOGA. BACKGROUND/OBJECTIVE: BODILY PROCESSES HAVE BEEN INTIMATELY LINKED TO SOCIAL-COGNITIVE AND AFFECTIVE FUNCTIONS, SUCH AS COMPASSION AND EMPATHY. YET, LITTLE IS KNOWN ABOUT HOW AWARENESS OF BODILY PROCESSES INFLUENCES SOCIAL AWARENESS AND VICE VERSA, ESPECIALLY IN NONOBSERVATIONAL BUT EXPERIENTIAL INVESTIGATIONS. THIS STUDY INVESTIGATED THE RELATIONSHIP BETWEEN PSYCHOMETRICALLY REPORTED BODY AND SOCIAL AWARENESS (INCLUDING ALTRUISM, EMPATHY, PERSPECTIVE-TAKING, AND COMPASSION) IN 90 YOGA AND YOGA-/MEDIATION-NAIVE CONTROL PARTICIPANTS. IN MODERN POSTURAL YOGA, ADVANCED PRACTITIONERS CLAIM BOTH INCREASED COMPASSION AND INNER FOCUS. METHODS: MULTIPLE REGRESSION ANALYSES WERE CONDUCTED TO PREDICT (1) THE LEVEL OF YOGA PRACTICE FROM BODY AWARENESS AND SOCIAL AWARENESS SKILLS IN THE YOGA GROUP AND (2) BODY AWARENESS FROM SOCIAL SKILLS IN BOTH GROUPS. RESULTS: BODY AWARENESS AND COMPASSION WERE SIGNIFICANT POSITIVE AND INDEPENDENT PREDICTORS OF YOGA EXPERTISE. THIS FINDING SUPPORTS PRACTITIONERS' ANECDOTAL CLAIMS BUT ALSO IMPLIES THAT BOTH FUNCTIONS TAP INTO DIFFERENT ASPECTS OF YOGA EXPERTISE. WHEN BODY AWARENESS WAS PREDICTED, ALTRUISM EMERGED AS A SIGNIFICANT NEGATIVE PREDICTOR IN THE YOGA GROUP (BUT NOT CONTROL GROUP) AS A FUNCTION OF YOGA PRACTICE. CONCLUSION: THESE RESULTS MIGHT COMPELLINGLY SUGGEST THAT, DESPITE HIGH COMPASSION, HEIGHTENED BODILY SELF-AWARENESS MIGHT INCREASE A SELF-CENTRED PERSPECTIVE AND LIMIT ALTRUISTIC ACTS IN ADVANCED YOGA PRACTITIONERS.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
7 1261  42 FINGER DEXTERITY AND VISUAL DISCRIMINATION FOLLOWING TWO YOGA BREATHING PRACTICES. BACKGROUND: PRACTICING YOGA HAS BEEN SHOWN TO IMPROVE MOTOR FUNCTIONS AND ATTENTION. THOUGH ATTENTION IS REQUIRED FOR FINE MOTOR AND DISCRIMINATION TASKS, THE EFFECT OF YOGA BREATHING TECHNIQUES ON FINE MOTOR SKILLS AND VISUAL DISCRIMINATION HAS NOT BEEN ASSESSED. AIM: TO STUDY THE EFFECT OF YOGA BREATHING TECHNIQUES ON FINGER DEXTERITY AND VISUAL DISCRIMINATION. MATERIALS AND METHODS: THE PRESENT STUDY CONSISTED OF ONE HUNDRED AND FORTY SUBJECTS WHO HAD ENROLLED FOR STRESS MANAGEMENT. THEY WERE RANDOMLY DIVIDED INTO TWO GROUPS, ONE GROUP PRACTICED HIGH FREQUENCY YOGA BREATHING WHILE THE OTHER GROUP PRACTICED BREATH AWARENESS. HIGH FREQUENCY YOGA BREATHING (KAPALABHATI, BREATH RATE 1.0 HZ) AND BREATH AWARENESS ARE TWO YOGA PRACTICES WHICH IMPROVE ATTENTION. THE IMMEDIATE EFFECT OF HIGH FREQUENCY YOGA BREATHING AND BREATH AWARENESS (I) WERE ASSESSED ON THE PERFORMANCE ON THE O'CONNOR FINGER DEXTERITY TASK AND (II) (IN) A SHAPE AND SIZE DISCRIMINATION TASK. RESULTS: THERE WAS A SIGNIFICANT IMPROVEMENT IN THE FINGER DEXTERITY TASK BY 19% AFTER KAPALABHATI AND 9% AFTER BREATH AWARENESS (P<0.001 IN BOTH CASES, REPEATED MEASURES ANOVA AND POST-HOC ANALYSES). THERE WAS A SIGNIFICANT REDUCTION (P<0.001) IN ERROR (41% AFTER KAPALABHATI AND 21% AFTER BREATH AWARENESS) AS WELL AS TIME TAKEN TO COMPLETE THE SHAPE AND SIZE DISCRIMINATION TEST (15% AFTER KAPALABHATI AND 15% AFTER BREATH AWARENESS; P<0.001) WAS ALSO OBSERVED. CONCLUSION: BOTH KAPALABAHATI AND BREATH AWARENESS CAN IMPROVE FINE MOTOR SKILLS AND VISUAL DISCRIMINATION, WITH A GREATER MAGNITUDE OF CHANGE AFTER KAPALABHATI.	2012	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
8 1354  26 IMMEDIATE EFFECT OF THREE YOGA BREATHING TECHNIQUES ON PERFORMANCE ON A LETTER-CANCELLATION TASK. THE EFFECTS OF THREE YOGA BREATHING PRACTICES WERE EVALUATED ON PERFORMANCE ON A LETTER-CANCELLATION TASK WHICH IS A LEFT-HEMISPHERE DOMINANT TASK. THE THREE YOGA BREATHING PRACTICES (RIGHT, LEFT, AND ALTERNATE NOSTRIL BREATHING) WERE SELECTED BECAUSE UNILATERAL FORCED NOSTRIL BREATHING STIMULATES THE CONTRALATERAL HEMISPHERE. THERE WERE 20 MALE VOLUNTEERS WHOSE AGES RANGED FROM 20 TO 45 YEARS (M AGE=28.4 YR., SD=5.7). ALL SUBJECTS WERE ASSESSED BEFORE AND AFTER FOUR SESSIONS, I.E., RIGHT NOSTRIL YOGA BREATHING, LEFT NOSTRIL YOGA BREATHING, ALTERNATE NOSTRIL YOGA BREATHING, AND BREATH AWARENESS AS A CONTROL. THE LETTER-CANCELLATION TASK SCORES WERE SIGNIFICANTLY IMPROVED, I.E., THERE WERE FEWER ERRORS FOLLOWING RIGHT AND ALTERNATE NOSTRIL YOGA BREATHING (WILCOXON PAIRED SIGNED-RANKS TEST). THE IMPROVED PERFORMANCE MAY BE RELATED TO THE ENHANCEMENT OF CONTRALATERAL HEMISPHERE FUNCTION FOUND WITH SELECTIVE NOSTRIL BREATHING.	2007	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
9  994  46 EFFECTS OF HIGH-FREQUENCY YOGA BREATHING CALLED KAPALABHATI COMPARED WITH BREATH AWARENESS ON THE DEGREE OF OPTICAL ILLUSION PERCEIVED. PRIOR RESEARCH HAS SHOWN THAT METHODS OF MEDITATION, BREATH CONTROL, AND DIFFERENT KINDS OF YOGA BREATHING AFFECT ATTENTION AND VISUAL PERCEPTION, INCLUDING DECREASING THE SIZE OF CERTAIN OPTICAL ILLUSIONS. EVALUATING RELATIONSHIPS SHEDS LIGHT ON THE PERCEPTUAL AND COGNITIVE CHANGES INDUCED BY YOGA AND RELATED METHODS, AND THE LOCUS OF THE EFFECTS. IN THE PRESENT STUDY, THE DEGREE OF OPTICAL ILLUSION WAS ASSESSED USING MULLER-LYER STIMULI BEFORE AND IMMEDIATELY AFTER TWO DIFFERENT KINDS OF PRACTICE, A HIGH FREQUENCY YOGA BREATHING CALLED KAPALABHATI, AND BREATH AWARENESS. A NONYOGA, CONTROL SESSION TESTED FOR PRACTICE EFFECTS. THIRTY PARTICIPANTS (WITH GROUP M AGE = 26.9 YR., SD = 5.7) PRACTICED THE TWO TECHNIQUES FOR 18 MIN. ON TWO SEPARATE DAYS. THE CONTROL GROUP HAD 15 NONYOGA PRACTITIONERS ASSESSED BEFORE AND AFTER 18 MIN. IN WHICH THEY DID NOT PERFORM ANY SPECIFIC ACTIVITY BUT WERE SEATED AND RELAXED. AFTER BOTH KAPALABHATI AND BREATH AWARENESS THERE WAS A SIGNIFICANT DECREASE IN THE DEGREE OF OPTICAL ILLUSION. THE POSSIBILITY THAT THIS WAS DUE TO A PRACTICE OR REPETITION EFFECT WAS RULED OUT WHEN 15 NONYOGA PRACTITIONERS SHOWED NO CHANGE IN THE DEGREE OF ILLUSION WHEN RETESTED AFTER 18 MIN. THE CHANGES WERE INTERPRETED AS DUE TO CHANGES IN PERCEPTION RELATED TO THE WAY THE STIMULI WERE JUDGED.	2011	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
10 1817  16 PROPOSED IDENTIFICATION OF PHYSIOLOGICAL CLASSIFICATION AND THEORETICAL MECHANISMS OF YOGASANAS. YOGA IN THE THEORETICAL AND PRACTICAL FORM IS NOW ACCEPTED ALL OVER THE WORLD, BY THE RESEARCHERS AS WELL AS BY THE GENERAL POPULATION. YOGASANA OR YOGIC POSTURES ARE ONE OF THE MAIN FOUNDATIONS OF PRACTICAL YOGA. MECHANISMS OF MEDIATION AND PRANAYAMA HAS ALREADY BEEN ESTABLISHED. IN THIS ARTICLE, THE AUTHOR IS FOR THE FIRST TIME PROPOSING PHYSIOLOGICAL CLASSIFICATION OF YOGASANA I.E. (A) STRETCH (B) CONTRACTION (C). NEUROMUSCULAR COORDINATION (D) SENSE REDUCTION (E) SPINE BRAIN ACTIVATION. IN SUPPORT OF THIS PHYSIOLOGICAL CLASSIFICATION AUTHOR HAS PROPOSED FIVE HYPOTHETICAL THEORIES I.E. (I) STRETCH RELAXATION AWARENESS (II) CONTRACTION RELAXATION AWARENESS (III) BALLASTIC CONTRACTION RELAXATION AWARENESS (IV) SENSORY MOTOR FUNCTION AWARENESS AND (V) VITAL ENERGY FLOW AWARENESS TO UNDERSTAND THE UNDERLYING MECHANISMS OF YOGASANA PRACTICE AND TO EXPLAIN ITS BENEFITS.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
11 2510  32 YOGA BREATHING THROUGH A PARTICULAR NOSTRIL INCREASES SPATIAL MEMORY SCORES WITHOUT LATERALIZED EFFECTS. UNINOSTRIL BREATHING FACILITATES THE PERFORMANCE ON SPATIAL AND VERBAL COGNITIVE TASKS, SAID TO BE RIGHT AND LEFT BRAIN FUNCTIONS, RESPECTIVELY. SINCE HEMISPHERIC MEMORY FUNCTIONS ARE ALSO KNOWN TO BE LATERALIZED, THE PRESENT STUDY ASSESSED THE EFFECTS OF UNINOSTRIL BREATHING ON THE PERFORMANCE IN VERBAL AND SPATIAL MEMORY TESTS. SCHOOL CHILDREN (N = 108 WHOSE AGES RANGED FROM 10 TO 17 YEARS) WERE RANDOMLY ASSIGNED TO FOUR GROUPS. EACH GROUP PRACTICED A SPECIFIC YOGA BREATHING TECHNIQUE: (I) RIGHT NOSTRIL BREATHING, (II) LEFT NOSTRIL BREATHING, (III) ALTERNATE NOSTRIL BREATHING, OR (IV) BREATH AWARENESS WITHOUT MANIPULATION OF NOSTRILS. THESE TECHNIQUES WERE PRACTICED FOR 10 DAYS. VERBAL AND SPATIAL MEMORY WAS ASSESSED INITIALLY AND AFTER 10 DAYS. AN AGE-MATCHED CONTROL GROUP OF 27 WERE SIMILARLY ASSESSED. ALL 4 TRAINED GROUPS SHOWED A SIGNIFICANT INCREASE IN SPATIAL TEST SCORES AT RETEST, BUT THE CONTROL GROUP SHOWED NO CHANGE. AVERAGE INCREASE IN SPATIAL MEMORY SCORES FOR THE TRAINED GROUPS WAS 84%. IT APPEARS YOGA BREATHING INCREASES SPATIAL RATHER THAN VERBAL SCORES, WITHOUT A LATERALIZED EFFECT.	1997	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
12 2760  35 YOGA PRACTITIONERS UNIQUELY ACTIVATE THE SUPERIOR PARIETAL LOBULE AND SUPRAMARGINAL GYRUS DURING EMOTION REGULATION. CHRONIC STRESS CONTRIBUTES TO BOTH MENTAL AND PHYSICAL ILLNESS. A HIGH PREVALENCE AND COST OF STRESS-RELATED ILLNESSES NORTH AMERICA WARRANTS INVESTIGATION INTO ALTERNATIVE OR COMPLEMENTARY THERAPIES WHICH MAY HELP REDUCE ADVERSE REACTIONS TO STRESSFUL STIMULI. EMOTION REGULATION IS THE PROCESS OF MONITORING AND ADJUSTING EMOTIONAL RESPONSES TO ENVIRONMENTAL STIMULI AND STRESSORS. INDIVIDUALS WHO PARTICIPATE IN PHYSICAL ACTIVITY ARE LESS LIKELY TO HAVE ADVERSE RESPONSES TO POTENTIALLY STRESSFUL SITUATIONS, POTENTIALLY DUE TO ADAPTIONS IN EMOTION REGULATION. YOGA IS A FORM OF PHYSICAL ACTIVITY INVOLVING STRETCHING EXERCISES AND MEDITATION, THAT MAY LESSEN INDIVIDUALS' LEVELS OF STRESS AND ANXIETY AND IMPROVE EMOTION REGULATION. HIGH-FREQUENCY HEART RATE VARIABILITY (HF-HRV) IS CONSIDERED A MEASURE OF PARASYMPATHETIC NERVOUS SYSTEM (PNS) ACTIVITY DURING THE EMOTION REGULATION. MEASURING HRV AND BRAIN ACTIVITY USING FUNCTIONAL MAGNETIC RESONANCE IMAGING (FMRI) OFFERS A USEFUL, NONINVASIVE APPROACH TO EVALUATING "NEUROVISCERAL" COMPONENTS OF EMOTION REGULATION. WE AIMED TO DETERMINE WHETHER YOGA PRACTITIONERS (YP) EXHIBIT DIFFERENT PATTERNS OF BRAIN ACTIVATION COMPARED TO RECREATIONAL ATHLETES (RA) WITHOUT CURRENT YOGA EXPERIENCE, WHILE VIEWING EMOTIONALLY AROUSING VISUAL STIMULI. OUR SECONDARY AIM WAS TO EXAMINE POTENTIAL DIFFERENCES ACROSS GROUPS IN HRV THROUGHOUT THE PRESENTATION OF THESE STIMULI. ANALYSIS OF FMRI DATA DURING EXPOSURE TO EMOTION-EVOKING (EE) STIMULI REVEALED THAT THE YP GROUP ACTIVATED TWO UNIQUE BRAIN AREAS, NAMELY THE SUPERIOR PARIETAL LOBULE AND THE SUPRAMARGINAL GYRUS. THESE AREAS HAVE BEEN ASSOCIATED WITH ATTENTIONAL AWARENESS AND REDUCED EGOCENTRIC BIAS, PROCESSES THAT HAVE BEEN IMPLICATED IN EMOTION REGULATION BY OTHERS. THE RA GROUP ACTIVATED THE INFERIOR MIDDLE FRONTAL CORTEX, AN AREA ASSOCIATED WITH COGNITIVE REAPPRAISAL DURING EMOTION REGULATION. THE YP GROUP ALSO DEMONSTRATED A TREND TOWARDS A HIGHER RATIO OF LOW- TO HIGH-FREQUENCY HRV COMPARED TO THE RA GROUP. THE PRESENT FINDINGS SUPPORT THE PRESENCE OF EXPERIENCE-DEPENDENT NEUROVISCERAL MECHANISMS ASSOCIATED WITH EMOTION REGULATION. INDIVIDUALS WHO PRACTICE YOGA REGULATE THEIR NEUROVISCERAL RESPONSES TO POTENTIALLY STRESSFUL EXTERNAL STIMULI IN A DIFFERENT MANNER THAN RECREATIONAL ATHLETES WHO DO NOT ENGAGE IN YOGA PRACTICE. THE PRESENT STUDY HAD A SMALL SAMPLE SIZE (RA: N = 12; YP: N = 19), WHICH SHOULD BE TAKEN INTO ACCOUNT WHEN INTERPRETING THE RESULTS.	2018	

13  415  21 BODY AWARENESS, EATING ATTITUDES, AND SPIRITUAL BELIEFS OF WOMEN PRACTICING YOGA. THIS RESEARCH EVALUATED ATTITUDES ABOUT BODY IMAGE AND EATING IN WOMEN PRACTICING POSTURAL YOGA. STUDY 1 DESCRIBED SCORES FROM QUESTIONNAIRES ON VARIABLES RELATED TO BODY AWARENESS, INTUITIVE EATING, SPIRITUALITY, AND REASONS FOR PRACTICING. SCORES WERE FAVORABLE ON ALL MEASURES WITH SIGNIFICANT CORRELATIONS (P < .01) AMONG ALL MAIN VARIABLES EXCEPT BETWEEN SPIRITUAL READINESS AND INTUITIVE EATING, AND BETWEEN BMI AND BOTH BODY AWARENESS AND SPIRITUAL READINESS. REASONS FOR PRACTICING DID NOT AFFECT SCORES. STUDY 2 EVALUATED INTERVIEWS IN A SUB-SAMPLE. QUALITATIVE DATA REPORTED IMPROVEMENTS IN BODY SATISFACTION AND DISORDERED EATING DUE IN PART TO YOGA AND ITS ASSOCIATED SPIRITUALITY.	2009	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
14  889  20 EFFECT OF YOGA-BASED AND FORCED UNINOSTRIL BREATHING ON THE AUTONOMIC NERVOUS SYSTEM. SOME REPORTS HAVE DESCRIBED THE EFFECTS OF FORCED UNINOSTRIL BREATHING ON AUTONOMIC ACTIVITY AS SEX-SPECIFIC, WHILE OTHER REPORTS DESCRIBED SELECTIVE EFFECTS OF BREATHING THROUGH A SPECIFIC NOSTRIL ON THE TWO DIVISIONS OF THE AUTONOMIC NERVOUS SYSTEM, IRRESPECTIVE OF SEX. THERE ARE ALSO YOGA BREATHING TECHNIQUES WHICH INVOLVE VOLUNTARY UNINOSTRIL BREATHING. THESE TECHNIQUES ALSO INFLUENCED THE AUTONOMIC ACTIVITY BASED ON THE PATENT NOSTRIL RATHER THAN SEX. THESE DESCRIPTIONS WERE IN LINE WITH EXPERIENTIAL OBSERVATIONS OF THE ANCIENT SAGES DESCRIBED IN CLASSICAL YOGA TEXTS. THIS PAPER SUMMARIZES THESE PERSPECTIVES ON UNINOSTRIL BREATHING.	2003	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
15  427  38 CAN YOGA BOOST ACCESS TO THE BODILY AND EMOTIONAL SELF? CHANGES IN HEART RATE VARIABILITY AND IN AFFECTIVE EVALUATION BEFORE, DURING AND AFTER A SINGLE SESSION OF YOGA EXERCISE WITH AND WITHOUT INSTRUCTIONS OF CONTROLLED BREATHING AND MINDFUL BODY AWARENESS IN YOUNG HEALTHY WOMEN. EXERCISE IS INDISPENSABLE FOR A HEALTHY LIFESTYLE. YOGA EXERCISE CAN HAVE POSITIVE EFFECTS ON WELL-BEING AND ON CARDIAC AUTONOMIC ACTIVITY MAKING IT AN IDEAL INTERVENTION FOR IMPROVING MIND-BODY INTERACTIONS AND RESILIENCE TO PHYSICAL AND MENTAL STRESSORS. EMOTIONS TRIGGER ESPECIALLY STRONG BODILY AND AFFECTIVE-COGNITIVE RESPONSES BECAUSE OF THEIR SOCIAL RELEVANCE FOR THE SELF AND THEIR BIOLOGICAL RELEVANCE OF MOBILIZING THE ORGANISM FOR ACTION. THIS STUDY INVESTIGATES WHETHER CHANGES IN EMOTION PROCESSING RELATED TO SELF-OTHER REFERENTIAL PROCESSING AND CHANGES IN CARDIAC AUTONOMIC ACTIVITY, REFLECTED BY HEART RATE VARIABILITY (HRV), OCCUR IMMEDIATELY AFTER ALREADY A SINGLE SESSION OF YOGA EXERCISE WHEN YOGA POSTURES ARE PRACTICED WITH OR WITHOUT BREATHING- AND MINDFUL BODY AWARENESS INSTRUCTIONS. WOMEN, ALL UNIVERSITY STUDENTS (N = 34, FINAL SAMPLE: N = 30, N = 25 NAIVE TO YOGA PRACTICE) WERE RANDOMLY ASSIGNED TO TWO EXPERIMENTAL GROUPS WHO PERFORMED THE SAME YOGA EXERCISES WITH OR WITHOUT CONTROLLED BREATHING AND MINDFULNESS INSTRUCTIONS. EMOTIONAL, SELF-OTHER REFERENTIAL PROCESSING, AWARENESS OF BODILY SIGNALS AND HRV INDICATORS WERE INVESTIGATED BEFORE AND AFTER THE EXERCISE USING STANDARDIZED EXPERIMENTAL TASKS, STANDARDIZED QUESTIONNAIRES, AND MOBILE RECORDING DEVICES. EXERCISING FOR 30 MINUTES CHANGED CARDIAC ACTIVITY SIGNIFICANTLY. HRV MEASURES SHOWED ADAPTABILITY OF CARDIAC ACTIVITY DURING THE EXERCISE AS WELL AS DURING THE AFFECTIVE TASK POST- TO PRE-EXERCISE. EXERCISING WITH BREATHING INSTRUCTIONS AND MINDFUL BODY AWARENESS HAD NO SUPERIOR EFFECTS ON CARDIAC, PARTICULARLY PARASYMPATHETIC ACTIVITY, COMPARED TO PRACTICING THE SAME MOVEMENTS WITHOUT SUCH EXPLICIT INSTRUCTIONS. SELF-REFERENTIAL PROCESSING DID NOT CHANGE; HOWEVER, PARTICIPANTS WERE FASTER AND MORE ACCURATE IN THEIR AFFECTIVE JUDGMENTS OF EMOTIONAL STIMULI [REGARDLESS OF THEIR REFERENCE (SELF/OTHER)], AND SHOWED BETTER AWARENESS OF BODILY SIGNALS AFTER COMPARED TO BEFORE THE EXERCISE SESSION. THE RESULTS SUPPORT IMMEDIATE, ADAPTIVE EFFECTS OF YOGA EXERCISE ON CARDIAC AND AFFECTIVE-COGNITIVE PROCESSING IN AN ALL-FEMALE HEALTHY SAMPLE. THEREFORE, YOGA EXERCISE COULD BE RECOMMENDED AS A PHYSICAL ACTIVITY FOR BOOSTING CARDIAC AND EMOTIONAL RESILIENCE IN THIS TARGET GROUP.	2021	
                                   
16 1321  31 HEMISPHERE SPECIFIC EEG RELATED TO ALTERNATE NOSTRIL YOGA BREATHING. BACKGROUND: PREVIOUSLY, FORCED UNILATERAL NOSTRIL BREATHING WAS ASSOCIATED WITH IPSILATERAL, OR CONTRALATERAL CEREBRAL HEMISPHERE CHANGES, OR NO CHANGE. HENCE IT WAS INCONCLUSIVE. THE PRESENT STUDY WAS CONDUCTED ON 13 NORMAL HEALTHY PARTICIPANTS TO DETERMINE THE EFFECTS OF ALTERNATE NOSTRIL YOGA BREATHING ON (A) CEREBRAL HEMISPHERE ASYMMETRY, AND (B) CHANGES IN THE STANDARD EEG BANDS. METHODS: PARTICIPANTS WERE RANDOMLY ALLOCATED TO THREE SESSIONS (A) ALTERNATE NOSTRIL YOGA BREATHING (ANYB), (B) BREATH AWARENESS AND (C) QUIET SITTING, ON SEPARATE DAYS. EEG WAS RECORDED FROM BILATERALLY SYMMETRICAL SITES (FP1, FP2, C3, C4, O1 AND O2). ALL SITES WERE REFERENCED TO THE IPSILATERAL EAR LOBE. RESULTS: THERE WAS NO CHANGE IN CEREBRAL HEMISPHERE SYMMETRY. THE RELATIVE POWER IN THE THETA BAND WAS DECREASED DURING ALTERNATE NOSTRIL YOGA BREATHING (ANYB) AND THE BETA AMPLITUDE WAS LOWER AFTER ANYB. DURING QUIET SITTING THE RELATIVE POWER IN THE BETA BAND INCREASED, WHILE THE AMPLITUDE OF THE ALPHA BAND REDUCED. CONCLUSION: THE RESULTS SUGGEST THAT ANYB WAS ASSOCIATED WITH GREATER CALMNESS, WHEREAS QUIET SITTING WITHOUT SPECIFIC DIRECTIONS WAS ASSOCIATED WITH AROUSAL. THE RESULTS IMPLY A POSSIBLE USE OF ANYB FOR STRESS AND ANXIETY REDUCTION.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
17 1727  37 PERFORMANCE IN A SUBSTITUTION TASK AND STATE ANXIETY FOLLOWING YOGA IN ARMY RECRUITS. 140 MEN (M AGE = 30.3 YR., SD = 5.7) FROM THE INDIAN ARMY IN NORTH INDIA PARTICIPATED IN THE STUDY. THEY WERE NAIVE TO YOGA AND WERE ASSIGNED TO YOGA AND BREATH AWARENESS GROUPS RANDOMLY, WITH 70 IN EACH GROUP. 20 HEALTHY MALES OF COMPARABLE AGE (M AGE = 33.7 YR., SD = 7.0) FORMED A COMPARISON GROUP. THEIR PERFORMANCE IN A DIGIT-LETTER SUBSTITUTION TASK AND A STATE ANXIETY SUBSCALE WAS ASSESSED IMMEDIATELY BEFORE AND AFTER TWO 45-MIN. SESSIONS. THE TWO GROUPS OF SOLDIERS PRACTICED EITHER YOGA OR BREATH AWARENESS. THE COMPARISON GROUP LISTENED TO MEDITATION MUSIC. DIGIT-LETTER SUBSTITUTION SCORES INCREASED IN BOTH GROUPS OF ARMY PERSONNEL AND IN THE COMPARISON GROUP. STATE ANXIETY DECREASED AFTER YOGA AND LISTENING TO MEDITATION MUSIC, BUT NOT AFTER BREATH AWARENESS. THIS SUGGESTS THAT EVEN IN ARMY PERSONNEL NAIVE TO YOGA, A YOGA-BASED INTERVENTION OR LISTENING TO MEDITATION MUSIC COULD REDUCE ANXIETY WHILE INCREASING PERFORMANCE ON AN ATTENTION TASK.	2012	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
18 1353  37 IMMEDIATE EFFECT OF SPECIFIC NOSTRIL MANIPULATING YOGA BREATHING PRACTICES ON AUTONOMIC AND RESPIRATORY VARIABLES. THE EFFECT OF RIGHT, LEFT, AND ALTERNATE NOSTRIL YOGA BREATHING (I.E., RNYB, LNYB, AND ANYB, RESPECTIVELY) WERE COMPARED WITH BREATH AWARENESS (BAW) AND NORMAL BREATHING (CTL). AUTONOMIC AND RESPIRATORY VARIABLES WERE STUDIED IN 21 MALE VOLUNTEERS WITH AGES BETWEEN 18 AND 45 YEARS AND EXPERIENCE IN THE YOGA BREATHING PRACTICES BETWEEN 3 AND 48 MONTHS. SUBJECTS WERE ASSESSED IN FIVE EXPERIMENTAL SESSIONS ON FIVE SEPARATE DAYS. THE SESSIONS WERE IN FIXED POSSIBLE SEQUENCES AND SUBJECTS WERE ASSIGNED TO A SEQUENCE RANDOMLY. EACH SESSION WAS FOR 40 MIN; 30 MIN FOR THE BREATHING PRACTICE, PRECEDED AND FOLLOWED BY 5 MIN OF QUIET SITTING. ASSESSMENTS INCLUDED HEART RATE VARIABILITY, SKIN CONDUCTANCE, FINGER PLETHYSMOGRAM AMPLITUDE, BREATH RATE, AND BLOOD PRESSURE. FOLLOWING RNYB THERE WAS A SIGNIFICANT INCREASE IN SYSTOLIC, DIASTOLIC AND MEAN PRESSURE. IN CONTRAST, THE SYSTOLIC AND DIASTOLIC PRESSURE DECREASED AFTER ANYB AND THE SYSTOLIC AND MEAN PRESSURE WERE LOWER AFTER LNYB. HENCE, UNILATERAL NOSTRIL YOGA BREATHING PRACTICES APPEAR TO INFLUENCE THE BLOOD PRESSURE IN DIFFERENT WAYS. THESE EFFECTS SUGGEST POSSIBLE THERAPEUTIC APPLICATIONS.	2008	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
19  677  38 EFFECT OF A YOGA BASED MEDITATION TECHNIQUE ON EMOTIONAL REGULATION, SELF-COMPASSION AND MINDFULNESS IN COLLEGE STUDENTS. BACKGROUND: EMOTION REGULATION IS OFTEN A CHALLENGE FOR THE COLLEGE STUDENTS. YOGA PRACTICE HAS BEEN SHOWN TO REDUCE STRESS AND IMPROVE MINDFULNESS THAT IS RELATED TO EMOTION REGULATION. MASTERING EMOTIONS TECHNIQUE (MEMT) IS ONE OF THE YOGA-BASED MEDITATION TECHNIQUES THAT ARE DESIGNED TO CONTROL EMOTIONS AMONG PRACTITIONERS. HOWEVER, TO THE BEST OF OUR KNOWLEDGE, THERE IS NO KNOWN STUDY REPORTING ITS SCIENTIFIC EVIDENCE-BASED EFFECTS ON EMOTION AND ITS RELATED VARIABLES. THUS, THIS STUDY WAS CONDUCTED TO EVALUATE THE EFFECT OF MEMT ON EMOTION REGULATION, SELF-COMPASSION, AND MINDFULNESS IN COLLEGE STUDENTS. MATERIALS AND METHODS: SEVENTY-TWO SUBJECTS WITH THE AGE VARIED FROM 18 TO 25 YEARS WERE RECRUITED FROM A RESIDENTIAL COLLEGE. ALL THE SUBJECTS UNDERWENT MEMT FOR THE DURATION OF 45 MIN A DAY FOR A PERIOD OF 2 WEEKS. ASSESSMENTS SUCH AS EMOTIONAL REGULATION QUESTIONNAIRE (ERQ), THE POSITIVE AND NEGATIVE AFFECT SCHEDULE (PANAS), SELF-COMPASSION SCALE (SCS), AND MINDFUL ATTENTION AWARENESS SCALE (MAAS) WERE TAKEN BEFORE AND AFTER THE INTERVENTION. RESULTS: RESULTS OF THIS STUDY SHOWED A SIGNIFICANT INCREASE IN THE SCORES OF COGNITIVE REAPPRAISAL, POSITIVE AFFECT, SELF-COMPASSION, AND MAAS ALONG WITH A SIGNIFICANT REDUCTION IN THE SCORES OF NEGATIVE AFFECT, AND EXPRESSIVE SUPPRESSION AFTER THE PRACTICE OF MEMT COMPARED TO ITS RESPECTIVE BASELINE. CONCLUSIONS: RESULTS OF THIS STUDY SUGGEST THAT PRACTICE OF MEMT IS EFFECTIVE IN IMPROVING EMOTION REGULATION, POSITIVE AFFECTS, SELF-COMPASSION, AND MINDFULNESS WHILE IN REDUCING NEGATIVE AFFECTS AMONG COLLEGE STUDENTS.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
20 1191  25 EVOLUTION FROM FOUR MENTAL STATES TO THE HIGHEST STATE OF CONSCIOUSNESS: A NEUROPHYSIOLOGICAL BASIS OF MEDITATION AS DEFINED IN YOGA TEXTS. THIS CHAPTER PROVIDES A THEORETICAL INTRODUCTION TO STATES OF CONSCIOUSNESS AND REVIEWS NEUROSCIENTIFIC INVESTIGATIONS OF MEDITATION. THE DIFFERENT STATES OF CONSCIOUSNESS CONSIST OF FOUR MENTAL STATES, I.E., CANCALATA (RANDOM THINKING), EKAGRATA (NON-MEDITATIVE FOCUSING), DHARNA (FOCUSED MEDITATION), AND DHYANA (MEDITATION) AS DEFINED IN YOGA TEXTS. MEDITATION IS A SELF-REGULATED MENTAL PROCESS ASSOCIATED WITH DEEP RELAXATION AND INCREASED INTERNALIZED ATTENTION. SCIENTIFIC INVESTIGATIONS ON MEDITATION REPORTED CHANGES IN ELECTROPHYSIOLOGICAL SIGNALS AND NEUROIMAGING MEASURES. BUT MOST OUTCOMES OF MEDITATION STUDIES SHOWED INCONSISTENT RESULTS, THIS MAY BE DUE TO HETEROGENEITY IN MEDITATION METHODS AND TECHNIQUES EVOLVED IN THE LAST 200 YEARS. TRADITIONALLY, THE FEATURES OF MEDITATION INCLUDE THE CAPACITY TO SUSTAIN A HEIGHTENED AWARENESS OF THOUGHTS, BEHAVIORS, EMOTIONS, AND PERCEPTIONS. GENERALLY, MEDITATION INVOLVES NON-REACTIVE EFFORTLESS MONITORING OF THE CONTENT OF EXPERIENCE FROM MOMENT TO MOMENT. FOCUSED MEDITATION PRACTICE INVOLVES AWARENESS ON A SINGLE OBJECT AND OPEN MONITORING MEDITATION IS A NON-DIRECTIVE MEDITATION INVOLVED ATTENTION IN BREATHING, MANTRA, OR SOUND. THEREFORE, RESULTS OF FEW EMPIRICAL STUDIES OF ADVANCED MEDITATORS OR BEGINNERS REMAIN TENTATIVE. THIS IS AN ATTEMPT TO COMPILE THE MEDITATION-RELATED CHANGES IN ELECTROPHYSIOLOGICAL AND NEUROIMAGING PROCESSES AMONG EXPERIENCED AND NOVICE PRACTITIONERS.	2019